overclocking problem - BIOS checksum error..

Monkey Puzzle · 22 Aug 2008 at 21:34

Hi, just been overclocking my machine - 4300, 4x1gb GeIL ULL 6400 RAM, Asus p5k deluxe MB, watercooled. I got it up to 3.33 (370 x 9) at 1.4825 (1.) and it's 30mins orthos stable so far, with load temps of ~62-63 by TAT.

I tried seeing whether the chip could go to 3.375 (375 x 9) and after blackscreening on lower voltages got it to get into windows and run orthos at 1.5625v in Bios. It ran Orthos for a minute before blackscreening and rebooting, after which the machine came up with a BIOS checksum error screen. After rebooting it seems fine at the earlier setting of 3.33 GHz. Is the bios checksum error screen something I should worry about? (BIOS is version 0404).

Monkey Puzzle · 22 Aug 2008 at 22:27

Oh right okay - memory is running at 1:1 so would have been at 750 MHz at 4-4-4-12 (it's rated for 800 at 4-4-4-12). Thanks for your replies.

Monkey Puzzle · 23 Aug 2008 at 01:10

These are my settings at present. Any suggestions on where to go from here?

Monkey Puzzle · 23 Aug 2008 at 01:34

cpu is a 4300 - had run 2hrs orthos stable at 1.475 vcore but failed intel burntest so increased it. So should I just set PLL, NB and SB to lowest voltages and then work up?